Fitting



July 14, 1942. H. wlGGlNs 2,290,122

FITTING Filed Marc'h 1, 1940 j um "f,

Patented July 14, 1942 UNITED STATES Para iiCi Application March 1, 1940, Serial No. 321,683 In Canada March 3, 1939 (Cl. 13S-37) 2 Claims.

This invention relates particularly to hot water heating systems of the one pipe type, that is, a system in which the hot water from the heater passes through a single circuit connected at one end with the hot water outlet of the heater and its other end with the return inlet of the heater.

With this single pipe, a double connection is made for each radiator, one for the supply of hot Water to the radiator and one for the return ow.

The object of the present invention is to devise an improved ttng to facilitate the connection with both ends of the radiator with the single pipe system, and, further, to devise a tting in which the passing of the hot water through the system will tend to assist the passage of hot water through each individual radiator.

I. attain my object by constructing the tting substantially as hereinafter described and illustrated in the accompanying drawing in which Fig. 1 is a, plan View of the improved tting;

Fig. 2 a longitudinal section through the same;

Fig. 3 a cross section on the line 3-3 in Fig. 2; and

Fig. 4 a cross section on the line 4-4 in Fig. 2.

In the drawing like numerals of reference indicate corresponding parts in the different figures.

Numeral I indicates the single pipe line of a hot water heating system, the ow of water being in the direction indicated by arrow. Numeral 2 is the improved tting, which is provided at one end with a threaded inlet opening 3 and at the other end with a threaded outlet opening 4 to receive the ends of the pipe forming the water conduit.

In its upper side are formed two threaded openings 5 and 6. With the opening 5 is connected a pipe 'I which leads to the inlet end of the radiator, not shown, while with the opening 6 is connected a pipe 8 leading from the outlet end of the radiator. It will be apparent that a portion of the hot water passing through the pipe l is led oi through the pipe 1, through the radiator, and back through the pipe 8.

In order to facilitate the ilow of water through the radiator and prevent it being pocketed therein, I form inside the body a tubular spud or extension 9 of the return flow inlet 6, which ex tension extends well down to the under side of the body. The lower end of the spud is beveled off as shown, the lowermost point being at the forward side having reference to the ow of water therethrough. It will be seen that the hot water passing through the body will pass at both sides and below the spud towards the outlet 4 and Will thus tend to create a suction in the Spud itself and thus draw the water from the radiator.

In order to assist this suction action, a concave recess I9 is formed in the body immediately b-elow the spud, which recess may, if desired, be extended up the side wall of the body.

While the spud or extension 9 is shown as integral with the body, it will be apparent that it may be formed on a separate tting threaded into a separate opening in the top of the body.

What I claim as my invention is:

1. A combined pipe coupling and ilow director for a single pipe water heating system comprising an open ended tubular body, one end forming an inlet and the other end an outlet, said body having a second outlet formed in its side adjacent the inlet end, and a return inlet formed in its side adjacent the outlet end, and a tubular spud communicating at one end with the return inlet, and extending transversely across the interior of the body to a position adjacent the opposite part of the interior Wall of the body, said tubular spud forming a dam reducing the eiTective cross sectional area of the liquid passage through the body, the end of said spud being bevelled, the long side of the spud being nearest the inlet end of the body.

v2. A combined pipe coupling and ilow director for a single pipe water heating system comprising an open ended tubular body, one end forming an inlet and the other end an outlet, said body having a second outlet formed in its side adjacent the inlet end, and a return inlet formed in its side adjacent the outlet end, and a tubular spud communicating at one end with the return inlet, and extending transversely across the interior of the body to a position adjacent the opposite part of the interior Wall of the body, said tubularspud forming a dam reducing the effective cross sectional area of the liquid passage through the body, the end of said Spud being beveled, the long side of the spud being nearest the inlet end of the body; said body opposite the bevelled end of the spud being recessed to divert the liquid away from the open end of the spud and increase the cross sectional area of the liquid passage behind the long side of the spud.

HAROLD WIGGINS. 

